Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. David S Leonard, MD

Pediatric Otolaryngology Physician in Saint Louis, MO · enumerated 2008.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1740444041

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Registry record

Entity type Individual (Type 1)

Name Dr. David S Leonard

Credential MD

Sex Male

Practice address 1 Childrens Pl, Dept Otolaryngology, Ste 3s, Saint Louis, MO, 63110

Phone (314) 454-6162

Fax (314) 454-2174

Enumeration date Jul 15, 2008

Last updated in NPPES Apr 17, 2025

Taxonomy & licenses

207YP0228X Pediatric Otolaryngology Physician Allopathic & Osteopathic Physicians · License 2018014209 (MO) Primary

MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential

Other identifiers

Identifier	Type	State	Issuer
200001148	Medicaid	MO	-

What is an NPI number?

A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.

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Frequently asked questions

Is this the official NPI registry?

No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.

What specialty is David Leonard?

David Leonard is registered in NPPES with the primary taxonomy of Pediatric Otolaryngology Physician. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-04-17.